Blog: David Loshin

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Master Data Management, Local Update, and Coherence

I am actually writing this entry in real time during my (and Malcolm Chisholm's) DAMA/Meta Data Conference tutorial on Effective Management of Master Data. A question was asked about allowing updates of local copies of master data objects within operational applications. I immediately commented that allowing this introduces coherence issues between the application copies and the master copy, and that one must ensure that policies exist for coherence management if local updates are to be allowed. Of course, we have to realize that this issue is not a new one - it has been around for a long time, both in the data world (transactional semantics) as well as the compiler world (cache and memory coherence).

I would be surprised that there are any MDM systems that allow for local update without having some embedded transactional semantics incorporated.

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